{"id":"CVE-2026-49996","summary":"securedrop-proxy origin limitation can be bypassed with redirects","details":"SecureDrop Client is a desktop app for journalists to securely communicate with sources and handle submissions on the SecureDrop Workstation. Prior to version 1.3.1, a malicious SecureDrop Server could bypass securedrop-proxy's origin limitation by responding with cross-origin redirects. SecureDrop Server itself has multiple layers of built-in hardening, and is a dedicated physical machine exposed on the internet only via Tor hidden services for the Source and Journalist interfaces, and optionally via remote SSH access over another Tor hidden service. A newsroom's SecureDrop Workstation communicates only with its own dedicated SecureDrop Server. Version 1.3.1 fixes the issue.","aliases":["GHSA-6qxc-pcfg-v6qv"],"modified":"2026-08-22T03:58:06.244386455Z","published":"2026-08-20T18:55:57.513Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49996.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-601"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49996.json"},{"type":"ADVISORY","url":"https://github.com/freedomofpress/securedrop-client/security/advisories/GHSA-6qxc-pcfg-v6qv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49996"},{"type":"FIX","url":"https://github.com/freedomofpress/securedrop-client/commit/3c9769b12fb115768d43617635fd2e00737ef2f7"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freedomofpress/securedrop-client","events":[{"introduced":"0"},{"fixed":"3c9769b12fb115768d43617635fd2e00737ef2f7"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.3.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["1.3.0","1.3.0-rc1","0.8.0","0.7.0","0.7.0-rc3","0.7.0-rc2","0.7.0-rc1","0.6.0-rc2","0.6.0-rc1","0.5.0","0.4.1","0.4.0","0.0.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49996.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}